<span>(2x3 − 5x − 1) + (4x3 + 8x + 3)
=6x^3 +3x +2
answer is </span><span> b. 6x3 + 3x + 2</span>
<span>the line over the 28 means the 28 repeats forever.
1.282828.... and so on
let x be the rational number 1.28...
we can use this trick:
100*1.282828....= 128.282828...
(the decimal 28 part repeats)
100x = 128.28...
next:
100x - x = 128.282828... - 1.282828...
the .282828... part will be subtracted away
99x = 127
divide both sides by 99 to get
x= 127/99</span>
Answer:
It is a homogeneus function of degree 1.
Step-by-step explanation:
Let us take
and a constant
. It holds that

which shows that
is homogeneus of degree 1.
No clue bro I’m sorry no help here
Answer:
y = 3
Step-by-step explanation:
y is inversely proportional to x setup: y = k/x
'k' is the constant of variation; find this first
7 = k/9
k = 63
now use 'k' to find 'y'
y = 63/21
y = 3